From 8abfe74c2bd69982567ae02c7aab7babdc3a774f Mon Sep 17 00:00:00 2001
From: Franziska Kunsmann <hi@kunsmann.eu>
Date: Sat, 21 Mar 2020 11:31:27 +0000
Subject: [PATCH] bundles/voc-loudness-monitor: inital commit of sources units

---
 .../files/loudness.service                    | 17 +++++
 .../voc-loudness-monitor/files/loudness.sh    | 25 +++++++
 bundles/voc-loudness-monitor/items.py         | 67 +++++++++++++++++++
 bundles/voc-loudness-monitor/metadata.py      |  9 +++
 4 files changed, 118 insertions(+)
 create mode 100644 bundles/voc-loudness-monitor/files/loudness.service
 create mode 100755 bundles/voc-loudness-monitor/files/loudness.sh
 create mode 100644 bundles/voc-loudness-monitor/items.py
 create mode 100644 bundles/voc-loudness-monitor/metadata.py

diff --git a/bundles/voc-loudness-monitor/files/loudness.service b/bundles/voc-loudness-monitor/files/loudness.service
new file mode 100644
index 0000000..3c3ee7a
--- /dev/null
+++ b/bundles/voc-loudness-monitor/files/loudness.service
@@ -0,0 +1,17 @@
+[Unit]
+Description=Loudness Monitor for ${url}
+After=syslog.target
+After=network.target
+
+[Service]
+RestartSec=30s
+Type=simple
+User=voc
+Group=voc
+WorkingDirectory=/opt/voc-loudness-monitor/
+ExecStart=/opt/voc-loudness-monitor/loudness_${id}.sh
+Restart=always
+StartLimitInterval=0
+
+[Install]
+WantedBy=multi-user.target
diff --git a/bundles/voc-loudness-monitor/files/loudness.sh b/bundles/voc-loudness-monitor/files/loudness.sh
new file mode 100755
index 0000000..0dde925
--- /dev/null
+++ b/bundles/voc-loudness-monitor/files/loudness.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+ffmpeg \
+        -y \
+        -hide_banner \
+        -nostdin \
+        -re \
+        -loglevel warning \
+        -timeout 5 \
+        -i ${url} \
+        -filter_complex "[0:v] scale=w=640:h=360, fps=25 [scaled];
+            [0:a] ebur128=video=1:target=-16:gauge=shortterm:scale=relative:size=640x480[ebur][a1];
+            [ebur] fps=25 [v1];
+            [v1][scaled] vstack=inputs=2 [out];
+            [a1] anullsink" \
+        -map "[out]" \
+            -c:v mpeg2video \
+            -pix_fmt yuv420p \
+            -q:v 2 \
+            -keyint_min 0 \
+        -an \
+        -f rtp rtp://127.0.0.1:${port}
diff --git a/bundles/voc-loudness-monitor/items.py b/bundles/voc-loudness-monitor/items.py
new file mode 100644
index 0000000..aab12ba
--- /dev/null
+++ b/bundles/voc-loudness-monitor/items.py
@@ -0,0 +1,67 @@
+assert node.has_bundle('systemd')
+
+streams = {
+    's1': {
+        'url': 'http://live.ber.c3voc.de:7999/s1',
+        'port': 15001,
+    },
+    's2': {
+        'url': 'http://live.ber.c3voc.de:7999/s2',
+        'port': 15002,
+    },
+    's3': {
+        'url': 'http://live.ber.c3voc.de:7999/s3',
+        'port': 15003,
+    },
+    's4': {
+        'url': 'http://live.ber.c3voc.de:7999/s4',
+        'port': 15004,
+    },
+    's5': {
+        'url': 'http://live.ber.c3voc.de:7999/s5',
+        'port': 15005,
+    },
+    's6': {
+        'url': 'http://live.ber.c3voc.de:7999/s6',
+        'port': 15006,
+    },
+    'sloop': {
+        'url': 'http://live.ber.c3voc.de:7999/sloop_h264',
+        'port': 15000,
+    },
+}
+
+files = {}
+svc_systemd = {}
+
+for stream_id, config in streams.items():
+    config['id'] = stream_id
+
+    files['/opt/voc-loudness-monitor/loudness_{}.sh'.format(stream_id)] = {
+        'source': 'loudness.sh',
+        'content_type': 'mako',
+        'context': config,
+        'mode': '0755',
+        'triggers': {
+            'svc_systemd:loudness_{}:restart'.format(stream_id),
+        },
+    }
+    files['/etc/systemd/system/loudness_{}.service'.format(stream_id)] = {
+        'source': 'loudness.service',
+        'content_type': 'mako',
+        'context': config,
+        'needs': {
+            'file:/opt/voc-loudness-monitor/loudness_{}.sh'.format(stream_id),
+        },
+        'triggers': {
+            'action:systemd-reload',
+            'svc_systemd:loudness_{}:restart'.format(stream_id),
+        },
+    }
+
+    svc_systemd['loudness_{}'.format(stream_id)] = {
+        'needs': {
+            'file:/etc/systemd/system/loudness_{}.service'.format(stream_id),
+            'action:systemd-reload',
+        },
+    }
diff --git a/bundles/voc-loudness-monitor/metadata.py b/bundles/voc-loudness-monitor/metadata.py
new file mode 100644
index 0000000..864fe83
--- /dev/null
+++ b/bundles/voc-loudness-monitor/metadata.py
@@ -0,0 +1,9 @@
+@metadata_processor
+def add_voc_user(metadata):
+    return {
+        'users': {
+            'voc': {
+                'home': '/opt/voc-loudness-monitor',
+            },
+        },
+    }, DEFAULTS, DONE